From 74f657d89c6734c260509338e88ad6d5f5a24e1d Mon Sep 17 00:00:00 2001 From: Filipe Manana Date: Mon, 15 Apr 2019 09:29:19 +0100 Subject: [PATCH] Btrfs: remove no longer used member num_dirty_bgs from transaction The member num_dirty_bgs of struct btrfs_transaction is not used anymore, it is set and incremented but nothing reads its value anymore. Its last read use was removed by commit 64403612b73a94 ("btrfs: rework btrfs_check_space_for_delayed_refs"). So just remove that member. Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/extent-tree.c | 1 - fs/btrfs/transaction.c | 1 - fs/btrfs/transaction.h | 1 - 3 files changed, 3 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 7b65d5349b91..7e9ba2f76ac9 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -6431,7 +6431,6 @@ static int update_block_group(struct btrfs_trans_handle *trans, if (list_empty(&cache->dirty_list)) { list_add_tail(&cache->dirty_list, &trans->transaction->dirty_bgs); - trans->transaction->num_dirty_bgs++; trans->delayed_ref_updates++; btrfs_get_block_group(cache); } diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 722ebdc02453..3f6811cdf803 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -233,7 +233,6 @@ loop: INIT_LIST_HEAD(&cur_trans->io_bgs); INIT_LIST_HEAD(&cur_trans->dropped_roots); mutex_init(&cur_trans->cache_write_mutex); - cur_trans->num_dirty_bgs = 0; spin_lock_init(&cur_trans->dirty_bgs_lock); INIT_LIST_HEAD(&cur_trans->deleted_bgs); spin_lock_init(&cur_trans->dropped_roots_lock); diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h index 4419a4a0294b..78c446c222b7 100644 --- a/fs/btrfs/transaction.h +++ b/fs/btrfs/transaction.h @@ -80,7 +80,6 @@ struct btrfs_transaction { */ struct mutex cache_write_mutex; spinlock_t dirty_bgs_lock; - unsigned int num_dirty_bgs; /* Protected by spin lock fs_info->unused_bgs_lock. */ struct list_head deleted_bgs; spinlock_t dropped_roots_lock;